Use After Free in Microsoft Windows_10_1607
CVE-2026-68820
Use after free in Windows Ancillary Function Driver for WinSock allows an authorized attacker to elevate privileges locally.
Vulnerability class: Use-After-Free
CVSS v3 metric
CVSS v3 base score 7.0 (High). Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Microsoft Windows_10_1607
- Microsoft Windows_10_1809
- Microsoft Windows_10_21h2
- Microsoft Windows_10_22h2
- Microsoft Windows 10 Version 1607 — versions 10.0.14393.0
- Microsoft Windows 10 Version 1809 — versions 10.0.17763.0
- Microsoft Windows 10 Version 21h2 — versions 10.0.19044.0
- Microsoft Windows 10 Version 22h2 — versions 10.0.19045.0
- Microsoft Windows_11_23h2
- Microsoft Windows_11_24h2
Weakness classification (CWE)
References
- Windows Ancillary Function Driver for WinSock Elevation of Privilege Vulnerability (vendor-advisory, Patch, patch, Vendor Advisory)
- 134c704f-9b21-4f2e-91b3-4a467353bcc0 (US Government Resource)
Frequently asked questions
- What is CVE-2026-68820?
- CVE-2026-68820 is a high-severity vulnerability in Microsoft Windows_10_1607, classified under Use After Free. CVSS score: 7.0/10. Published 2026-08-11.
- How severe is CVE-2026-68820?
- High severity. CVSS v3 base score is 7.0 out of 10.